Lambda inputs, Wideband, Narrow band – MoTeC M84 User Manual
Page 74: Digital inputs, 72 appendices motec
72 Appendices
MoTeC
Trigger Levels: Programmable 0 to 15V
Hysteresis: Individually programmable high and low levels.
Lambda Inputs
Wideband
Sensor Type: NTK or Bosch LSU 4.0, 4.2, 4.9
Measurement Range : 0.70 to 32.0 Lambda
Narrow Band
The LA1S and LA2S inputs may be used to measure the voltage of
normal narrow band oxygen sensors.
If closed loop control is to be used then an external 33k ohm bias
resistor from the input to 0V is required to bias the input to
Stoichiometric (0.45V) while the sensor is cold.
Digital Inputs
Suitable for:
Switch to 0V, logic signal and open collector device
(e.g. Hall Switch)
Pullup Resistor:
4700 ohms to 5 V
Voltage Range:
0 to 15 V
Positive Trigger
Threshold:
3.5 V max
Negative Threshold:
1.0 V min
Hysteresis:
0.5 V Min
Filter Time Constant:
22 usec
Trigger Edge:
Programmable
Measurement Methods:
Switched, Speed / Frequency, Period, Pulse Width